/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayEffectTypes.h
Encapsulate require and ignore tags
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType)) struct FGameplayTagRequirements
FGameplayTagCon...
IgnoreTags
None of these tags may be present
FGameplayTagCon...
RequireTags
All of these tags must be present
FGameplayTagQue...
TagQuery
Build up a more complex query that can't be expressed with RequireTags/IgnoreTags alone